• 제목/요약/키워드: Welding Chamber Height

검색결과 4건 처리시간 0.022초

접합실 높이에 따른 컨덴서 튜브 직접압출 공정 및 금형강도 해석 (Die Stress and Process Analysis for Condenser Tube Extrusion according to Chamber Height)

  • 이정민;김병민;정영득;조훈;조형호
    • 소성∙가공
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    • 제12권3호
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    • pp.214-220
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    • 2003
  • In the case of hollow cylinder extrusion using porthole die, the effects of extrusion parameters-temperature, the speed of extrusion, the shape of the die and mandrel-on metal flow in porthole die extrusion of aluminum have been investigated. There have been few studies about condenser tube extruded by porthole die. This study was designed to evaluate metal flow, welding pressure, extrusion load, tendency of mandrel deflection according to variation of chamber length in porthole die. The welding chamber height in condenser tube was calculated by using finite element method. Forming analysis results for condenser tube would provide useful information for the optimal design of porthole die.

전자빔 용접기 진공 작업실의 구조설계 (Structural Design on the Vacuum Chamber of Electron Beam Welding System)

  • 이영신;류충현;서정;한유희
    • 한국레이저가공학회지
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    • 제1권1호
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    • pp.11-17
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    • 1998
  • The electron beam welding system has the advantages of the high power density, narrow welding section, and small thermal distortion of a workpiece. Recently, the electron beam welding system is widely used to the airplane engineering, nuclear power plant, and automobile industry. In the present paper, the structural analyses on the vacuum chamber of the electron beam welding system are performed by the F.E.M. analysis. The stiffening characteristics on the geometric shape, stiffener height and stiffener span are investigated. The deflection of the stiffened vacuum chamber under pressure is minimized by longitudinal and transverse stiffeners which are continuous in both direction.

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접합실 높이변화에 따른 컨덴서 튜브 직접압출 공정 및 금형강도해석 (Die stress and Process of Analysis for Condenser Tube Extrusion according to Chamber Height)

  • 이정민;이상곤;김병민;조형호;조훈
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 2002년도 제5회 압출 및 인발가공 심포지엄
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    • pp.33-41
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    • 2002
  • In case of hollow cylinder extrusion using porthole die, the effects of extrusion parameters-temperature, the speed of extrusion, the shape of the die and mandrel-on metal flow in porthole die extrusion of aluminum have been investigated. However, there have been few studies about condenser tube extruded by porthole die. This study was designed to evaluate metal flow, welding pressure, extrusion load, tendency of mandrel deflection according to variation of chamber length. in porthole die. Estimation was carried out using finite element method. Porthole die is analyzed in as non-steady state. Analytical results provide useful information the optimal design of porthole die.

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Development of Gap Measuring System Between Strip and Air Knife in Continuous Galvanizing Line

  • Lee, Jang-Myung;Ryu, Young-Kee
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2001년도 ICCAS
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    • pp.53.5-53
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    • 2001
  • In continuous galvanizing process at steel making plant, coating weight on the surface of strip that pass through air knife is controlled by the pressure at the chamber of air knife and the gap between the nozzle of air knife and strip. The pressure can be easily measured and controlled. But it is difficult to measure the distance between Air knife nozzle and strip, and also difficult to decide how much distance air knife move. Because, the gap between nozzle and strip varies with the height of air knife, intermesh of stabilizing roll and welding of strips that have different thickness. In this research, we developed a gap sensor that can measure the relative distance between Air knife nozzle and strip. And several tests are performed to find optimal condition for application at real plant. We performed test in which the possibility of the sensor to apply ...

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